Huddersfield are in the market for a defensive midfielder and Diagouraga is thought to be the top target on their wanted list, while Diagouraga's former Brentford boss Mark Warburton is keen on being reunited with the player at Rangers as he plots a return to the Scottish Premiership.

Brentford are, however, reluctant to lose one of their prized assets and are determined to fend off any interest in Diagouraga as they look to build on their success from last season.